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General Technical Report
Title: Monitoring bird populations by point counts
Author: Ralph, C. John; Sauer, John R.; Droege, Sam, technical editors.
Source: Gen. Tech. Rep. PSW-GTR-149. Albany, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Research Station. 187 p.
Station ID: GTR-PSW-149
Description: This volume contains in part papers presented at the Symposium on Monitoring Bird Population Trends by Point Counts, which was held November 6-7, 1991, in Beltsville, Md., in response to the need for standardization of methods to monitor bird populations by point counts. Data from various investigators working under a wide variety of conditions are presented, and various aspects of point count methodology are examined. Point counts of birds are the most widely used quantitative method and involve an observer recording birds from a single point for a standardized time period. Statistical aspects of sampling and analysis were discussed and applied to the objectives of point counts. Symposium participants agreed upon standards of point counts that should have wide applicability to a variety of habitats and terrain.
Key Words: Bird counts, bird populations, census methodology, evaluation, monitoring, point counts, sampling of populations, standards of censusing
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Front Matter and Preface
Evaluation of Point Count Methods
Lynch, James F.
Smith, Winston P.; Twedt, Daniel J.; Cooper, Robert J.; Wiedenfeld, David A.; Hamel, Paul B.; Ford, Robert P.
Wolf, Amy T.; Howe, Robert W.; Davis, Gregory J.
Buskirk, William H. ; McDonald, Jennifer L.
Dawson, Deanna K.; Smith, David R.; Robbins, Chandler S.
Thompson, Frank R.; Schwalbach, Monica J.
Petit, Daniel R.; Petit, Lisa J.; Saab,Victoria A.; Martin, Thomas E.
Savard, Jean-Pierre L.; Hooper, Tracey D.
Cyr, André; Lepage, Denis; Freemark, Kathryn
Freemark, Kathryn; Rogers, Catherine
Bart, Jonathan; Robson, Douglas S.
Howe, Robert W.; Wolf, Amy T.; Rinaldi, Tony
Welsh, Daniel A.
On- and Off-Road Comparisons
Rotenberry, John T.; Knick, Steven T.
Hutto, Richard L.; Hejl, Sallie J.; Kelly, Jeffrey F.; Pletschet, Sandra M.
Keller, Cherry M.E.; Fuller, Mark R.
Statistical Aspects of Design and Analysis
Johnson, Douglas H.
Barker, Richard J.; Sauer, John R.
Pendleton, Grey W.
Gates, J. Edwards
Hanowski, JoAnn M.; Niemi,Gerald J.
Sauer, John R.; Pendleton, Grey W.; Orsillo, Sandra
Ralph, C. John; Droege, Sam; Sauer, John R.
Ralph, C. John; Sauer, John R.; Droege, Sam, technical editors. 1995. Monitoring bird populations by point counts. Gen. Tech. Rep. PSW-GTR-149. Albany, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Research Station. 187 p.